4 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
5 * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
6 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
7 * Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
8 * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * Due to this file being licensed under the GPL there is controversy over
16 * whether this permits you to write a module that #includes this file
17 * without placing your module under the GPL. Please consult a lawyer for
18 * advice before doing this.
22 #ifndef __LINUX_SECURITY_H
23 #define __LINUX_SECURITY_H
25 #include <linux/key.h>
26 #include <linux/capability.h>
28 #include <linux/slab.h>
29 #include <linux/err.h>
30 #include <linux/string.h>
51 struct file_operations
;
59 /* If capable should audit the security request */
60 #define SECURITY_CAP_NOAUDIT 0
61 #define SECURITY_CAP_AUDIT 1
63 /* LSM Agnostic defines for sb_set_mnt_opts */
64 #define SECURITY_LSM_NATIVE_LABELS 1
68 struct user_namespace
;
71 /* These functions are in security/commoncap.c */
72 extern int cap_capable(const struct cred
*cred
, struct user_namespace
*ns
,
74 extern int cap_settime(const struct timespec64
*ts
, const struct timezone
*tz
);
75 extern int cap_ptrace_access_check(struct task_struct
*child
, unsigned int mode
);
76 extern int cap_ptrace_traceme(struct task_struct
*parent
);
77 extern int cap_capget(struct task_struct
*target
, kernel_cap_t
*effective
, kernel_cap_t
*inheritable
, kernel_cap_t
*permitted
);
78 extern int cap_capset(struct cred
*new, const struct cred
*old
,
79 const kernel_cap_t
*effective
,
80 const kernel_cap_t
*inheritable
,
81 const kernel_cap_t
*permitted
);
82 extern int cap_bprm_set_creds(struct linux_binprm
*bprm
);
83 extern int cap_bprm_secureexec(struct linux_binprm
*bprm
);
84 extern int cap_inode_setxattr(struct dentry
*dentry
, const char *name
,
85 const void *value
, size_t size
, int flags
);
86 extern int cap_inode_removexattr(struct dentry
*dentry
, const char *name
);
87 extern int cap_inode_need_killpriv(struct dentry
*dentry
);
88 extern int cap_inode_killpriv(struct dentry
*dentry
);
89 extern int cap_mmap_addr(unsigned long addr
);
90 extern int cap_mmap_file(struct file
*file
, unsigned long reqprot
,
91 unsigned long prot
, unsigned long flags
);
92 extern int cap_task_fix_setuid(struct cred
*new, const struct cred
*old
, int flags
);
93 extern int cap_task_prctl(int option
, unsigned long arg2
, unsigned long arg3
,
94 unsigned long arg4
, unsigned long arg5
);
95 extern int cap_task_setscheduler(struct task_struct
*p
);
96 extern int cap_task_setioprio(struct task_struct
*p
, int ioprio
);
97 extern int cap_task_setnice(struct task_struct
*p
, int nice
);
98 extern int cap_vm_enough_memory(struct mm_struct
*mm
, long pages
);
107 struct xfrm_selector
;
110 struct xfrm_user_sec_ctx
;
114 extern unsigned long mmap_min_addr
;
115 extern unsigned long dac_mmap_min_addr
;
117 #define mmap_min_addr 0UL
118 #define dac_mmap_min_addr 0UL
122 * Values used in the task_security_ops calls
124 /* setuid or setgid, id0 == uid or gid */
125 #define LSM_SETID_ID 1
127 /* setreuid or setregid, id0 == real, id1 == eff */
128 #define LSM_SETID_RE 2
130 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
131 #define LSM_SETID_RES 4
133 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
134 #define LSM_SETID_FS 8
136 /* forward declares to avoid warnings */
140 /* bprm->unsafe reasons */
141 #define LSM_UNSAFE_SHARE 1
142 #define LSM_UNSAFE_PTRACE 2
143 #define LSM_UNSAFE_PTRACE_CAP 4
144 #define LSM_UNSAFE_NO_NEW_PRIVS 8
147 extern int mmap_min_addr_handler(struct ctl_table
*table
, int write
,
148 void __user
*buffer
, size_t *lenp
, loff_t
*ppos
);
151 /* security_inode_init_security callback function to write xattrs */
152 typedef int (*initxattrs
) (struct inode
*inode
,
153 const struct xattr
*xattr_array
, void *fs_data
);
155 #ifdef CONFIG_SECURITY
157 struct security_mnt_opts
{
163 static inline void security_init_mnt_opts(struct security_mnt_opts
*opts
)
165 opts
->mnt_opts
= NULL
;
166 opts
->mnt_opts_flags
= NULL
;
167 opts
->num_mnt_opts
= 0;
170 static inline void security_free_mnt_opts(struct security_mnt_opts
*opts
)
174 for (i
= 0; i
< opts
->num_mnt_opts
; i
++)
175 kfree(opts
->mnt_opts
[i
]);
176 kfree(opts
->mnt_opts
);
177 opts
->mnt_opts
= NULL
;
178 kfree(opts
->mnt_opts_flags
);
179 opts
->mnt_opts_flags
= NULL
;
180 opts
->num_mnt_opts
= 0;
184 extern int security_init(void);
186 /* Security operations */
187 int security_binder_set_context_mgr(struct task_struct
*mgr
);
188 int security_binder_transaction(struct task_struct
*from
,
189 struct task_struct
*to
);
190 int security_binder_transfer_binder(struct task_struct
*from
,
191 struct task_struct
*to
);
192 int security_binder_transfer_file(struct task_struct
*from
,
193 struct task_struct
*to
, struct file
*file
);
194 int security_ptrace_access_check(struct task_struct
*child
, unsigned int mode
);
195 int security_ptrace_traceme(struct task_struct
*parent
);
196 int security_capget(struct task_struct
*target
,
197 kernel_cap_t
*effective
,
198 kernel_cap_t
*inheritable
,
199 kernel_cap_t
*permitted
);
200 int security_capset(struct cred
*new, const struct cred
*old
,
201 const kernel_cap_t
*effective
,
202 const kernel_cap_t
*inheritable
,
203 const kernel_cap_t
*permitted
);
204 int security_capable(const struct cred
*cred
, struct user_namespace
*ns
,
206 int security_capable_noaudit(const struct cred
*cred
, struct user_namespace
*ns
,
208 int security_quotactl(int cmds
, int type
, int id
, struct super_block
*sb
);
209 int security_quota_on(struct dentry
*dentry
);
210 int security_syslog(int type
);
211 int security_settime64(const struct timespec64
*ts
, const struct timezone
*tz
);
212 static inline int security_settime(const struct timespec
*ts
, const struct timezone
*tz
)
214 struct timespec64 ts64
= timespec_to_timespec64(*ts
);
216 return security_settime64(&ts64
, tz
);
218 int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
);
219 int security_bprm_set_creds(struct linux_binprm
*bprm
);
220 int security_bprm_check(struct linux_binprm
*bprm
);
221 void security_bprm_committing_creds(struct linux_binprm
*bprm
);
222 void security_bprm_committed_creds(struct linux_binprm
*bprm
);
223 int security_bprm_secureexec(struct linux_binprm
*bprm
);
224 int security_sb_alloc(struct super_block
*sb
);
225 void security_sb_free(struct super_block
*sb
);
226 int security_sb_copy_data(char *orig
, char *copy
);
227 int security_sb_remount(struct super_block
*sb
, void *data
);
228 int security_sb_kern_mount(struct super_block
*sb
, int flags
, void *data
);
229 int security_sb_show_options(struct seq_file
*m
, struct super_block
*sb
);
230 int security_sb_statfs(struct dentry
*dentry
);
231 int security_sb_mount(const char *dev_name
, const struct path
*path
,
232 const char *type
, unsigned long flags
, void *data
);
233 int security_sb_umount(struct vfsmount
*mnt
, int flags
);
234 int security_sb_pivotroot(const struct path
*old_path
, const struct path
*new_path
);
235 int security_sb_set_mnt_opts(struct super_block
*sb
,
236 struct security_mnt_opts
*opts
,
237 unsigned long kern_flags
,
238 unsigned long *set_kern_flags
);
239 int security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
240 struct super_block
*newsb
);
241 int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
);
242 int security_dentry_init_security(struct dentry
*dentry
, int mode
,
243 const struct qstr
*name
, void **ctx
,
245 int security_dentry_create_files_as(struct dentry
*dentry
, int mode
,
247 const struct cred
*old
,
250 int security_inode_alloc(struct inode
*inode
);
251 void security_inode_free(struct inode
*inode
);
252 int security_inode_init_security(struct inode
*inode
, struct inode
*dir
,
253 const struct qstr
*qstr
,
254 initxattrs initxattrs
, void *fs_data
);
255 int security_old_inode_init_security(struct inode
*inode
, struct inode
*dir
,
256 const struct qstr
*qstr
, const char **name
,
257 void **value
, size_t *len
);
258 int security_inode_create(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
);
259 int security_inode_link(struct dentry
*old_dentry
, struct inode
*dir
,
260 struct dentry
*new_dentry
);
261 int security_inode_unlink(struct inode
*dir
, struct dentry
*dentry
);
262 int security_inode_symlink(struct inode
*dir
, struct dentry
*dentry
,
263 const char *old_name
);
264 int security_inode_mkdir(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
);
265 int security_inode_rmdir(struct inode
*dir
, struct dentry
*dentry
);
266 int security_inode_mknod(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
, dev_t dev
);
267 int security_inode_rename(struct inode
*old_dir
, struct dentry
*old_dentry
,
268 struct inode
*new_dir
, struct dentry
*new_dentry
,
270 int security_inode_readlink(struct dentry
*dentry
);
271 int security_inode_follow_link(struct dentry
*dentry
, struct inode
*inode
,
273 int security_inode_permission(struct inode
*inode
, int mask
);
274 int security_inode_setattr(struct dentry
*dentry
, struct iattr
*attr
);
275 int security_inode_getattr(const struct path
*path
);
276 int security_inode_setxattr(struct dentry
*dentry
, const char *name
,
277 const void *value
, size_t size
, int flags
);
278 void security_inode_post_setxattr(struct dentry
*dentry
, const char *name
,
279 const void *value
, size_t size
, int flags
);
280 int security_inode_getxattr(struct dentry
*dentry
, const char *name
);
281 int security_inode_listxattr(struct dentry
*dentry
);
282 int security_inode_removexattr(struct dentry
*dentry
, const char *name
);
283 int security_inode_need_killpriv(struct dentry
*dentry
);
284 int security_inode_killpriv(struct dentry
*dentry
);
285 int security_inode_getsecurity(struct inode
*inode
, const char *name
, void **buffer
, bool alloc
);
286 int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
);
287 int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
);
288 void security_inode_getsecid(struct inode
*inode
, u32
*secid
);
289 int security_inode_copy_up(struct dentry
*src
, struct cred
**new);
290 int security_inode_copy_up_xattr(const char *name
);
291 int security_file_permission(struct file
*file
, int mask
);
292 int security_file_alloc(struct file
*file
);
293 void security_file_free(struct file
*file
);
294 int security_file_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
295 int security_mmap_file(struct file
*file
, unsigned long prot
,
296 unsigned long flags
);
297 int security_mmap_addr(unsigned long addr
);
298 int security_file_mprotect(struct vm_area_struct
*vma
, unsigned long reqprot
,
300 int security_file_lock(struct file
*file
, unsigned int cmd
);
301 int security_file_fcntl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
302 void security_file_set_fowner(struct file
*file
);
303 int security_file_send_sigiotask(struct task_struct
*tsk
,
304 struct fown_struct
*fown
, int sig
);
305 int security_file_receive(struct file
*file
);
306 int security_file_open(struct file
*file
, const struct cred
*cred
);
307 int security_task_create(unsigned long clone_flags
);
308 void security_task_free(struct task_struct
*task
);
309 int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
);
310 void security_cred_free(struct cred
*cred
);
311 int security_prepare_creds(struct cred
*new, const struct cred
*old
, gfp_t gfp
);
312 void security_transfer_creds(struct cred
*new, const struct cred
*old
);
313 int security_kernel_act_as(struct cred
*new, u32 secid
);
314 int security_kernel_create_files_as(struct cred
*new, struct inode
*inode
);
315 int security_kernel_module_request(char *kmod_name
);
316 int security_kernel_module_from_file(struct file
*file
);
317 int security_kernel_read_file(struct file
*file
, enum kernel_read_file_id id
);
318 int security_kernel_post_read_file(struct file
*file
, char *buf
, loff_t size
,
319 enum kernel_read_file_id id
);
320 int security_task_fix_setuid(struct cred
*new, const struct cred
*old
,
322 int security_task_setpgid(struct task_struct
*p
, pid_t pgid
);
323 int security_task_getpgid(struct task_struct
*p
);
324 int security_task_getsid(struct task_struct
*p
);
325 void security_task_getsecid(struct task_struct
*p
, u32
*secid
);
326 int security_task_setnice(struct task_struct
*p
, int nice
);
327 int security_task_setioprio(struct task_struct
*p
, int ioprio
);
328 int security_task_getioprio(struct task_struct
*p
);
329 int security_task_setrlimit(struct task_struct
*p
, unsigned int resource
,
330 struct rlimit
*new_rlim
);
331 int security_task_setscheduler(struct task_struct
*p
);
332 int security_task_getscheduler(struct task_struct
*p
);
333 int security_task_movememory(struct task_struct
*p
);
334 int security_task_kill(struct task_struct
*p
, struct siginfo
*info
,
336 int security_task_wait(struct task_struct
*p
);
337 int security_task_prctl(int option
, unsigned long arg2
, unsigned long arg3
,
338 unsigned long arg4
, unsigned long arg5
);
339 void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
);
340 int security_ipc_permission(struct kern_ipc_perm
*ipcp
, short flag
);
341 void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
);
342 int security_msg_msg_alloc(struct msg_msg
*msg
);
343 void security_msg_msg_free(struct msg_msg
*msg
);
344 int security_msg_queue_alloc(struct msg_queue
*msq
);
345 void security_msg_queue_free(struct msg_queue
*msq
);
346 int security_msg_queue_associate(struct msg_queue
*msq
, int msqflg
);
347 int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
);
348 int security_msg_queue_msgsnd(struct msg_queue
*msq
,
349 struct msg_msg
*msg
, int msqflg
);
350 int security_msg_queue_msgrcv(struct msg_queue
*msq
, struct msg_msg
*msg
,
351 struct task_struct
*target
, long type
, int mode
);
352 int security_shm_alloc(struct shmid_kernel
*shp
);
353 void security_shm_free(struct shmid_kernel
*shp
);
354 int security_shm_associate(struct shmid_kernel
*shp
, int shmflg
);
355 int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
);
356 int security_shm_shmat(struct shmid_kernel
*shp
, char __user
*shmaddr
, int shmflg
);
357 int security_sem_alloc(struct sem_array
*sma
);
358 void security_sem_free(struct sem_array
*sma
);
359 int security_sem_associate(struct sem_array
*sma
, int semflg
);
360 int security_sem_semctl(struct sem_array
*sma
, int cmd
);
361 int security_sem_semop(struct sem_array
*sma
, struct sembuf
*sops
,
362 unsigned nsops
, int alter
);
363 void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
);
364 int security_getprocattr(struct task_struct
*p
, char *name
, char **value
);
365 int security_setprocattr(struct task_struct
*p
, char *name
, void *value
, size_t size
);
366 int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
);
367 int security_ismaclabel(const char *name
);
368 int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
);
369 int security_secctx_to_secid(const char *secdata
, u32 seclen
, u32
*secid
);
370 void security_release_secctx(char *secdata
, u32 seclen
);
372 void security_inode_invalidate_secctx(struct inode
*inode
);
373 int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
);
374 int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
);
375 int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
);
376 #else /* CONFIG_SECURITY */
377 struct security_mnt_opts
{
380 static inline void security_init_mnt_opts(struct security_mnt_opts
*opts
)
384 static inline void security_free_mnt_opts(struct security_mnt_opts
*opts
)
389 * This is the default capabilities functionality. Most of these functions
390 * are just stubbed out, but a few must call the proper capable code.
393 static inline int security_init(void)
398 static inline int security_binder_set_context_mgr(struct task_struct
*mgr
)
403 static inline int security_binder_transaction(struct task_struct
*from
,
404 struct task_struct
*to
)
409 static inline int security_binder_transfer_binder(struct task_struct
*from
,
410 struct task_struct
*to
)
415 static inline int security_binder_transfer_file(struct task_struct
*from
,
416 struct task_struct
*to
,
422 static inline int security_ptrace_access_check(struct task_struct
*child
,
425 return cap_ptrace_access_check(child
, mode
);
428 static inline int security_ptrace_traceme(struct task_struct
*parent
)
430 return cap_ptrace_traceme(parent
);
433 static inline int security_capget(struct task_struct
*target
,
434 kernel_cap_t
*effective
,
435 kernel_cap_t
*inheritable
,
436 kernel_cap_t
*permitted
)
438 return cap_capget(target
, effective
, inheritable
, permitted
);
441 static inline int security_capset(struct cred
*new,
442 const struct cred
*old
,
443 const kernel_cap_t
*effective
,
444 const kernel_cap_t
*inheritable
,
445 const kernel_cap_t
*permitted
)
447 return cap_capset(new, old
, effective
, inheritable
, permitted
);
450 static inline int security_capable(const struct cred
*cred
,
451 struct user_namespace
*ns
, int cap
)
453 return cap_capable(cred
, ns
, cap
, SECURITY_CAP_AUDIT
);
456 static inline int security_capable_noaudit(const struct cred
*cred
,
457 struct user_namespace
*ns
, int cap
) {
458 return cap_capable(cred
, ns
, cap
, SECURITY_CAP_NOAUDIT
);
461 static inline int security_quotactl(int cmds
, int type
, int id
,
462 struct super_block
*sb
)
467 static inline int security_quota_on(struct dentry
*dentry
)
472 static inline int security_syslog(int type
)
477 static inline int security_settime64(const struct timespec64
*ts
,
478 const struct timezone
*tz
)
480 return cap_settime(ts
, tz
);
483 static inline int security_settime(const struct timespec
*ts
,
484 const struct timezone
*tz
)
486 struct timespec64 ts64
= timespec_to_timespec64(*ts
);
488 return cap_settime(&ts64
, tz
);
491 static inline int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
)
493 return __vm_enough_memory(mm
, pages
, cap_vm_enough_memory(mm
, pages
));
496 static inline int security_bprm_set_creds(struct linux_binprm
*bprm
)
498 return cap_bprm_set_creds(bprm
);
501 static inline int security_bprm_check(struct linux_binprm
*bprm
)
506 static inline void security_bprm_committing_creds(struct linux_binprm
*bprm
)
510 static inline void security_bprm_committed_creds(struct linux_binprm
*bprm
)
514 static inline int security_bprm_secureexec(struct linux_binprm
*bprm
)
516 return cap_bprm_secureexec(bprm
);
519 static inline int security_sb_alloc(struct super_block
*sb
)
524 static inline void security_sb_free(struct super_block
*sb
)
527 static inline int security_sb_copy_data(char *orig
, char *copy
)
532 static inline int security_sb_remount(struct super_block
*sb
, void *data
)
537 static inline int security_sb_kern_mount(struct super_block
*sb
, int flags
, void *data
)
542 static inline int security_sb_show_options(struct seq_file
*m
,
543 struct super_block
*sb
)
548 static inline int security_sb_statfs(struct dentry
*dentry
)
553 static inline int security_sb_mount(const char *dev_name
, const struct path
*path
,
554 const char *type
, unsigned long flags
,
560 static inline int security_sb_umount(struct vfsmount
*mnt
, int flags
)
565 static inline int security_sb_pivotroot(const struct path
*old_path
,
566 const struct path
*new_path
)
571 static inline int security_sb_set_mnt_opts(struct super_block
*sb
,
572 struct security_mnt_opts
*opts
,
573 unsigned long kern_flags
,
574 unsigned long *set_kern_flags
)
579 static inline int security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
580 struct super_block
*newsb
)
585 static inline int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
)
590 static inline int security_inode_alloc(struct inode
*inode
)
595 static inline void security_inode_free(struct inode
*inode
)
598 static inline int security_dentry_init_security(struct dentry
*dentry
,
600 const struct qstr
*name
,
607 static inline int security_dentry_create_files_as(struct dentry
*dentry
,
608 int mode
, struct qstr
*name
,
609 const struct cred
*old
,
616 static inline int security_inode_init_security(struct inode
*inode
,
618 const struct qstr
*qstr
,
619 const initxattrs xattrs
,
625 static inline int security_old_inode_init_security(struct inode
*inode
,
627 const struct qstr
*qstr
,
629 void **value
, size_t *len
)
634 static inline int security_inode_create(struct inode
*dir
,
635 struct dentry
*dentry
,
641 static inline int security_inode_link(struct dentry
*old_dentry
,
643 struct dentry
*new_dentry
)
648 static inline int security_inode_unlink(struct inode
*dir
,
649 struct dentry
*dentry
)
654 static inline int security_inode_symlink(struct inode
*dir
,
655 struct dentry
*dentry
,
656 const char *old_name
)
661 static inline int security_inode_mkdir(struct inode
*dir
,
662 struct dentry
*dentry
,
668 static inline int security_inode_rmdir(struct inode
*dir
,
669 struct dentry
*dentry
)
674 static inline int security_inode_mknod(struct inode
*dir
,
675 struct dentry
*dentry
,
681 static inline int security_inode_rename(struct inode
*old_dir
,
682 struct dentry
*old_dentry
,
683 struct inode
*new_dir
,
684 struct dentry
*new_dentry
,
690 static inline int security_inode_readlink(struct dentry
*dentry
)
695 static inline int security_inode_follow_link(struct dentry
*dentry
,
702 static inline int security_inode_permission(struct inode
*inode
, int mask
)
707 static inline int security_inode_setattr(struct dentry
*dentry
,
713 static inline int security_inode_getattr(const struct path
*path
)
718 static inline int security_inode_setxattr(struct dentry
*dentry
,
719 const char *name
, const void *value
, size_t size
, int flags
)
721 return cap_inode_setxattr(dentry
, name
, value
, size
, flags
);
724 static inline void security_inode_post_setxattr(struct dentry
*dentry
,
725 const char *name
, const void *value
, size_t size
, int flags
)
728 static inline int security_inode_getxattr(struct dentry
*dentry
,
734 static inline int security_inode_listxattr(struct dentry
*dentry
)
739 static inline int security_inode_removexattr(struct dentry
*dentry
,
742 return cap_inode_removexattr(dentry
, name
);
745 static inline int security_inode_need_killpriv(struct dentry
*dentry
)
747 return cap_inode_need_killpriv(dentry
);
750 static inline int security_inode_killpriv(struct dentry
*dentry
)
752 return cap_inode_killpriv(dentry
);
755 static inline int security_inode_getsecurity(struct inode
*inode
, const char *name
, void **buffer
, bool alloc
)
760 static inline int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
)
765 static inline int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
)
770 static inline void security_inode_getsecid(struct inode
*inode
, u32
*secid
)
775 static inline int security_inode_copy_up(struct dentry
*src
, struct cred
**new)
780 static inline int security_inode_copy_up_xattr(const char *name
)
785 static inline int security_file_permission(struct file
*file
, int mask
)
790 static inline int security_file_alloc(struct file
*file
)
795 static inline void security_file_free(struct file
*file
)
798 static inline int security_file_ioctl(struct file
*file
, unsigned int cmd
,
804 static inline int security_mmap_file(struct file
*file
, unsigned long prot
,
810 static inline int security_mmap_addr(unsigned long addr
)
812 return cap_mmap_addr(addr
);
815 static inline int security_file_mprotect(struct vm_area_struct
*vma
,
816 unsigned long reqprot
,
822 static inline int security_file_lock(struct file
*file
, unsigned int cmd
)
827 static inline int security_file_fcntl(struct file
*file
, unsigned int cmd
,
833 static inline void security_file_set_fowner(struct file
*file
)
838 static inline int security_file_send_sigiotask(struct task_struct
*tsk
,
839 struct fown_struct
*fown
,
845 static inline int security_file_receive(struct file
*file
)
850 static inline int security_file_open(struct file
*file
,
851 const struct cred
*cred
)
856 static inline int security_task_create(unsigned long clone_flags
)
861 static inline void security_task_free(struct task_struct
*task
)
864 static inline int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
)
869 static inline void security_cred_free(struct cred
*cred
)
872 static inline int security_prepare_creds(struct cred
*new,
873 const struct cred
*old
,
879 static inline void security_transfer_creds(struct cred
*new,
880 const struct cred
*old
)
884 static inline int security_kernel_act_as(struct cred
*cred
, u32 secid
)
889 static inline int security_kernel_create_files_as(struct cred
*cred
,
895 static inline int security_kernel_module_request(char *kmod_name
)
900 static inline int security_kernel_read_file(struct file
*file
,
901 enum kernel_read_file_id id
)
906 static inline int security_kernel_post_read_file(struct file
*file
,
907 char *buf
, loff_t size
,
908 enum kernel_read_file_id id
)
913 static inline int security_task_fix_setuid(struct cred
*new,
914 const struct cred
*old
,
917 return cap_task_fix_setuid(new, old
, flags
);
920 static inline int security_task_setpgid(struct task_struct
*p
, pid_t pgid
)
925 static inline int security_task_getpgid(struct task_struct
*p
)
930 static inline int security_task_getsid(struct task_struct
*p
)
935 static inline void security_task_getsecid(struct task_struct
*p
, u32
*secid
)
940 static inline int security_task_setnice(struct task_struct
*p
, int nice
)
942 return cap_task_setnice(p
, nice
);
945 static inline int security_task_setioprio(struct task_struct
*p
, int ioprio
)
947 return cap_task_setioprio(p
, ioprio
);
950 static inline int security_task_getioprio(struct task_struct
*p
)
955 static inline int security_task_setrlimit(struct task_struct
*p
,
956 unsigned int resource
,
957 struct rlimit
*new_rlim
)
962 static inline int security_task_setscheduler(struct task_struct
*p
)
964 return cap_task_setscheduler(p
);
967 static inline int security_task_getscheduler(struct task_struct
*p
)
972 static inline int security_task_movememory(struct task_struct
*p
)
977 static inline int security_task_kill(struct task_struct
*p
,
978 struct siginfo
*info
, int sig
,
984 static inline int security_task_wait(struct task_struct
*p
)
989 static inline int security_task_prctl(int option
, unsigned long arg2
,
994 return cap_task_prctl(option
, arg2
, arg3
, arg4
, arg5
);
997 static inline void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
)
1000 static inline int security_ipc_permission(struct kern_ipc_perm
*ipcp
,
1006 static inline void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
)
1011 static inline int security_msg_msg_alloc(struct msg_msg
*msg
)
1016 static inline void security_msg_msg_free(struct msg_msg
*msg
)
1019 static inline int security_msg_queue_alloc(struct msg_queue
*msq
)
1024 static inline void security_msg_queue_free(struct msg_queue
*msq
)
1027 static inline int security_msg_queue_associate(struct msg_queue
*msq
,
1033 static inline int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
)
1038 static inline int security_msg_queue_msgsnd(struct msg_queue
*msq
,
1039 struct msg_msg
*msg
, int msqflg
)
1044 static inline int security_msg_queue_msgrcv(struct msg_queue
*msq
,
1045 struct msg_msg
*msg
,
1046 struct task_struct
*target
,
1047 long type
, int mode
)
1052 static inline int security_shm_alloc(struct shmid_kernel
*shp
)
1057 static inline void security_shm_free(struct shmid_kernel
*shp
)
1060 static inline int security_shm_associate(struct shmid_kernel
*shp
,
1066 static inline int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
)
1071 static inline int security_shm_shmat(struct shmid_kernel
*shp
,
1072 char __user
*shmaddr
, int shmflg
)
1077 static inline int security_sem_alloc(struct sem_array
*sma
)
1082 static inline void security_sem_free(struct sem_array
*sma
)
1085 static inline int security_sem_associate(struct sem_array
*sma
, int semflg
)
1090 static inline int security_sem_semctl(struct sem_array
*sma
, int cmd
)
1095 static inline int security_sem_semop(struct sem_array
*sma
,
1096 struct sembuf
*sops
, unsigned nsops
,
1102 static inline void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
)
1105 static inline int security_getprocattr(struct task_struct
*p
, char *name
, char **value
)
1110 static inline int security_setprocattr(struct task_struct
*p
, char *name
, void *value
, size_t size
)
1115 static inline int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
)
1120 static inline int security_ismaclabel(const char *name
)
1125 static inline int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
)
1130 static inline int security_secctx_to_secid(const char *secdata
,
1137 static inline void security_release_secctx(char *secdata
, u32 seclen
)
1141 static inline void security_inode_invalidate_secctx(struct inode
*inode
)
1145 static inline int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
)
1149 static inline int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
)
1153 static inline int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
)
1157 #endif /* CONFIG_SECURITY */
1159 #ifdef CONFIG_SECURITY_NETWORK
1161 int security_unix_stream_connect(struct sock
*sock
, struct sock
*other
, struct sock
*newsk
);
1162 int security_unix_may_send(struct socket
*sock
, struct socket
*other
);
1163 int security_socket_create(int family
, int type
, int protocol
, int kern
);
1164 int security_socket_post_create(struct socket
*sock
, int family
,
1165 int type
, int protocol
, int kern
);
1166 int security_socket_bind(struct socket
*sock
, struct sockaddr
*address
, int addrlen
);
1167 int security_socket_connect(struct socket
*sock
, struct sockaddr
*address
, int addrlen
);
1168 int security_socket_listen(struct socket
*sock
, int backlog
);
1169 int security_socket_accept(struct socket
*sock
, struct socket
*newsock
);
1170 int security_socket_sendmsg(struct socket
*sock
, struct msghdr
*msg
, int size
);
1171 int security_socket_recvmsg(struct socket
*sock
, struct msghdr
*msg
,
1172 int size
, int flags
);
1173 int security_socket_getsockname(struct socket
*sock
);
1174 int security_socket_getpeername(struct socket
*sock
);
1175 int security_socket_getsockopt(struct socket
*sock
, int level
, int optname
);
1176 int security_socket_setsockopt(struct socket
*sock
, int level
, int optname
);
1177 int security_socket_shutdown(struct socket
*sock
, int how
);
1178 int security_sock_rcv_skb(struct sock
*sk
, struct sk_buff
*skb
);
1179 int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
1180 int __user
*optlen
, unsigned len
);
1181 int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
);
1182 int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
);
1183 void security_sk_free(struct sock
*sk
);
1184 void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
);
1185 void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
);
1186 void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
);
1187 void security_sock_graft(struct sock
*sk
, struct socket
*parent
);
1188 int security_inet_conn_request(struct sock
*sk
,
1189 struct sk_buff
*skb
, struct request_sock
*req
);
1190 void security_inet_csk_clone(struct sock
*newsk
,
1191 const struct request_sock
*req
);
1192 void security_inet_conn_established(struct sock
*sk
,
1193 struct sk_buff
*skb
);
1194 int security_secmark_relabel_packet(u32 secid
);
1195 void security_secmark_refcount_inc(void);
1196 void security_secmark_refcount_dec(void);
1197 int security_tun_dev_alloc_security(void **security
);
1198 void security_tun_dev_free_security(void *security
);
1199 int security_tun_dev_create(void);
1200 int security_tun_dev_attach_queue(void *security
);
1201 int security_tun_dev_attach(struct sock
*sk
, void *security
);
1202 int security_tun_dev_open(void *security
);
1204 #else /* CONFIG_SECURITY_NETWORK */
1205 static inline int security_unix_stream_connect(struct sock
*sock
,
1212 static inline int security_unix_may_send(struct socket
*sock
,
1213 struct socket
*other
)
1218 static inline int security_socket_create(int family
, int type
,
1219 int protocol
, int kern
)
1224 static inline int security_socket_post_create(struct socket
*sock
,
1227 int protocol
, int kern
)
1232 static inline int security_socket_bind(struct socket
*sock
,
1233 struct sockaddr
*address
,
1239 static inline int security_socket_connect(struct socket
*sock
,
1240 struct sockaddr
*address
,
1246 static inline int security_socket_listen(struct socket
*sock
, int backlog
)
1251 static inline int security_socket_accept(struct socket
*sock
,
1252 struct socket
*newsock
)
1257 static inline int security_socket_sendmsg(struct socket
*sock
,
1258 struct msghdr
*msg
, int size
)
1263 static inline int security_socket_recvmsg(struct socket
*sock
,
1264 struct msghdr
*msg
, int size
,
1270 static inline int security_socket_getsockname(struct socket
*sock
)
1275 static inline int security_socket_getpeername(struct socket
*sock
)
1280 static inline int security_socket_getsockopt(struct socket
*sock
,
1281 int level
, int optname
)
1286 static inline int security_socket_setsockopt(struct socket
*sock
,
1287 int level
, int optname
)
1292 static inline int security_socket_shutdown(struct socket
*sock
, int how
)
1296 static inline int security_sock_rcv_skb(struct sock
*sk
,
1297 struct sk_buff
*skb
)
1302 static inline int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
1303 int __user
*optlen
, unsigned len
)
1305 return -ENOPROTOOPT
;
1308 static inline int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
)
1310 return -ENOPROTOOPT
;
1313 static inline int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
)
1318 static inline void security_sk_free(struct sock
*sk
)
1322 static inline void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
)
1326 static inline void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
)
1330 static inline void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
)
1334 static inline void security_sock_graft(struct sock
*sk
, struct socket
*parent
)
1338 static inline int security_inet_conn_request(struct sock
*sk
,
1339 struct sk_buff
*skb
, struct request_sock
*req
)
1344 static inline void security_inet_csk_clone(struct sock
*newsk
,
1345 const struct request_sock
*req
)
1349 static inline void security_inet_conn_established(struct sock
*sk
,
1350 struct sk_buff
*skb
)
1354 static inline int security_secmark_relabel_packet(u32 secid
)
1359 static inline void security_secmark_refcount_inc(void)
1363 static inline void security_secmark_refcount_dec(void)
1367 static inline int security_tun_dev_alloc_security(void **security
)
1372 static inline void security_tun_dev_free_security(void *security
)
1376 static inline int security_tun_dev_create(void)
1381 static inline int security_tun_dev_attach_queue(void *security
)
1386 static inline int security_tun_dev_attach(struct sock
*sk
, void *security
)
1391 static inline int security_tun_dev_open(void *security
)
1395 #endif /* CONFIG_SECURITY_NETWORK */
1397 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1399 int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
,
1400 struct xfrm_user_sec_ctx
*sec_ctx
, gfp_t gfp
);
1401 int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old_ctx
, struct xfrm_sec_ctx
**new_ctxp
);
1402 void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
);
1403 int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
);
1404 int security_xfrm_state_alloc(struct xfrm_state
*x
, struct xfrm_user_sec_ctx
*sec_ctx
);
1405 int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1406 struct xfrm_sec_ctx
*polsec
, u32 secid
);
1407 int security_xfrm_state_delete(struct xfrm_state
*x
);
1408 void security_xfrm_state_free(struct xfrm_state
*x
);
1409 int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
);
1410 int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1411 struct xfrm_policy
*xp
,
1412 const struct flowi
*fl
);
1413 int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
);
1414 void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
);
1416 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1418 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
,
1419 struct xfrm_user_sec_ctx
*sec_ctx
,
1425 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old
, struct xfrm_sec_ctx
**new_ctxp
)
1430 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
)
1434 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
)
1439 static inline int security_xfrm_state_alloc(struct xfrm_state
*x
,
1440 struct xfrm_user_sec_ctx
*sec_ctx
)
1445 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1446 struct xfrm_sec_ctx
*polsec
, u32 secid
)
1451 static inline void security_xfrm_state_free(struct xfrm_state
*x
)
1455 static inline int security_xfrm_state_delete(struct xfrm_state
*x
)
1460 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
)
1465 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1466 struct xfrm_policy
*xp
, const struct flowi
*fl
)
1471 static inline int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
)
1476 static inline void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
)
1480 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1482 #ifdef CONFIG_SECURITY_PATH
1483 int security_path_unlink(const struct path
*dir
, struct dentry
*dentry
);
1484 int security_path_mkdir(const struct path
*dir
, struct dentry
*dentry
, umode_t mode
);
1485 int security_path_rmdir(const struct path
*dir
, struct dentry
*dentry
);
1486 int security_path_mknod(const struct path
*dir
, struct dentry
*dentry
, umode_t mode
,
1488 int security_path_truncate(const struct path
*path
);
1489 int security_path_symlink(const struct path
*dir
, struct dentry
*dentry
,
1490 const char *old_name
);
1491 int security_path_link(struct dentry
*old_dentry
, const struct path
*new_dir
,
1492 struct dentry
*new_dentry
);
1493 int security_path_rename(const struct path
*old_dir
, struct dentry
*old_dentry
,
1494 const struct path
*new_dir
, struct dentry
*new_dentry
,
1495 unsigned int flags
);
1496 int security_path_chmod(const struct path
*path
, umode_t mode
);
1497 int security_path_chown(const struct path
*path
, kuid_t uid
, kgid_t gid
);
1498 int security_path_chroot(const struct path
*path
);
1499 #else /* CONFIG_SECURITY_PATH */
1500 static inline int security_path_unlink(const struct path
*dir
, struct dentry
*dentry
)
1505 static inline int security_path_mkdir(const struct path
*dir
, struct dentry
*dentry
,
1511 static inline int security_path_rmdir(const struct path
*dir
, struct dentry
*dentry
)
1516 static inline int security_path_mknod(const struct path
*dir
, struct dentry
*dentry
,
1517 umode_t mode
, unsigned int dev
)
1522 static inline int security_path_truncate(const struct path
*path
)
1527 static inline int security_path_symlink(const struct path
*dir
, struct dentry
*dentry
,
1528 const char *old_name
)
1533 static inline int security_path_link(struct dentry
*old_dentry
,
1534 const struct path
*new_dir
,
1535 struct dentry
*new_dentry
)
1540 static inline int security_path_rename(const struct path
*old_dir
,
1541 struct dentry
*old_dentry
,
1542 const struct path
*new_dir
,
1543 struct dentry
*new_dentry
,
1549 static inline int security_path_chmod(const struct path
*path
, umode_t mode
)
1554 static inline int security_path_chown(const struct path
*path
, kuid_t uid
, kgid_t gid
)
1559 static inline int security_path_chroot(const struct path
*path
)
1563 #endif /* CONFIG_SECURITY_PATH */
1566 #ifdef CONFIG_SECURITY
1568 int security_key_alloc(struct key
*key
, const struct cred
*cred
, unsigned long flags
);
1569 void security_key_free(struct key
*key
);
1570 int security_key_permission(key_ref_t key_ref
,
1571 const struct cred
*cred
, unsigned perm
);
1572 int security_key_getsecurity(struct key
*key
, char **_buffer
);
1576 static inline int security_key_alloc(struct key
*key
,
1577 const struct cred
*cred
,
1578 unsigned long flags
)
1583 static inline void security_key_free(struct key
*key
)
1587 static inline int security_key_permission(key_ref_t key_ref
,
1588 const struct cred
*cred
,
1594 static inline int security_key_getsecurity(struct key
*key
, char **_buffer
)
1601 #endif /* CONFIG_KEYS */
1604 #ifdef CONFIG_SECURITY
1605 int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
, void **lsmrule
);
1606 int security_audit_rule_known(struct audit_krule
*krule
);
1607 int security_audit_rule_match(u32 secid
, u32 field
, u32 op
, void *lsmrule
,
1608 struct audit_context
*actx
);
1609 void security_audit_rule_free(void *lsmrule
);
1613 static inline int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
,
1619 static inline int security_audit_rule_known(struct audit_krule
*krule
)
1624 static inline int security_audit_rule_match(u32 secid
, u32 field
, u32 op
,
1625 void *lsmrule
, struct audit_context
*actx
)
1630 static inline void security_audit_rule_free(void *lsmrule
)
1633 #endif /* CONFIG_SECURITY */
1634 #endif /* CONFIG_AUDIT */
1636 #ifdef CONFIG_SECURITYFS
1638 extern struct dentry
*securityfs_create_file(const char *name
, umode_t mode
,
1639 struct dentry
*parent
, void *data
,
1640 const struct file_operations
*fops
);
1641 extern struct dentry
*securityfs_create_dir(const char *name
, struct dentry
*parent
);
1642 extern void securityfs_remove(struct dentry
*dentry
);
1644 #else /* CONFIG_SECURITYFS */
1646 static inline struct dentry
*securityfs_create_dir(const char *name
,
1647 struct dentry
*parent
)
1649 return ERR_PTR(-ENODEV
);
1652 static inline struct dentry
*securityfs_create_file(const char *name
,
1654 struct dentry
*parent
,
1656 const struct file_operations
*fops
)
1658 return ERR_PTR(-ENODEV
);
1661 static inline void securityfs_remove(struct dentry
*dentry
)
1666 #ifdef CONFIG_SECURITY
1668 static inline char *alloc_secdata(void)
1670 return (char *)get_zeroed_page(GFP_KERNEL
);
1673 static inline void free_secdata(void *secdata
)
1675 free_page((unsigned long)secdata
);
1680 static inline char *alloc_secdata(void)
1685 static inline void free_secdata(void *secdata
)
1687 #endif /* CONFIG_SECURITY */
1689 #endif /* ! __LINUX_SECURITY_H */
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